Protocol droids

Protocol Droids were droid units that were designed for protocols and for Galactic Senators during the Old Republic era. By the time of the Clone Wars at least two knock-off and war models of the protocol droid were made, the 3PX and the BL-series Battle Legionnaire droids along with the RA-7 Protocol Droid. By the time of the Galactic Civil War, several different models of Protocol Droid were made for both the Galactic Empire and Rebel Alliance. One of the most well-known protocol droid was C-3PO.

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